(19)

(11)

EP 2 622 636 A1

(12)

(43) Date of publication: 07.08.2013 Bulletin 2013/32 (21) Application number: 11761602.9 (22) Date of filing: 28.09.2011

(51) International Patent Classification (IPC):  H01L 23/528(2006.01) H01L 23/522(2006.01) (86) International application number: PCT/EP2011/066831 (87) International publication number: WO 2012/041889 (05.04.2012 Gazette 2012/14)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR (30) Priority: 29.09.2010 EP 10182111 (71) Applicant: ST-Ericsson SA 1228 Plan-les-Ouates (CH)	(72) Inventors: HERDER, Sjoerd NL-6708NH Wageningen (NL) KONING, Harro NL-6846 AL Arnhem (NL) (74) Representative: Ström & Gulliksson AB  Studentgatan 1 P.O. Box 4188 SE-203 13 Malmö SE-203 13 Malmö (SE)